WorksheetsMuscular System
Total questions: 30
Worksheet time: 30mins
A bundle of muscle fibers is called ________.
fascicles
endomysium
epimysium
perimysium
These types of muscles are found in the walls of the hollow visceral organs such as the stomach, urinary bladder, and respiratory passages.
smooth muscles
skeletal muscles
cardiac muscles
gut muscles
The organelles of a muscle fiber are called ______________.
myofibril
fibria
myosin
sarcomere
This pathway of regenerating energy for muscle contraction provides more ATP that lasts for hours compared to other pathways.
Direct phosphorylation
Aerobic respiration
Anaerobic glycolysis
Accumulating this substance in the body during activity results in muscle fatigue and muscle soreness.
lactic acid
ATP
pyruvate
creatine
A type of body movement when you move your limb away from the midline.
abduction
adduction
flexion
extension
These are muscles that help prime movers by producing the same movement or by reducing undesirable movement.
synergist
antagonist
protagonist
The arrangement of fascicles of pectoralis major.
convergent
parallel
fusiform
pennate
In the head and neck muscles, what muscle can be categorized as both facial and chewing muscle?
buccinator
orbicularis oris
zygomaticus muscle
masseter
The six-pack abs visible in many body builders is what muscle _____________.
rectus abdominis
transverse abdominis
internal oblique
external oblique
Intramuscular injection to be given in the gluteal region must be done in the
gluteus maximus
gluteus medius
gluteus minimus
gluteus superios
A contraction in which a skeletal muscle does not shorten but its tension increases are called isometric.
True
False
The neurotransmitter used by the nervous system to activate skeletal muscle cells is acetylcholine.
True
False
The epimysium covers individual muscle fibers.
True
False
Brachioradialis is a strong muscle that resides mainly in the forearm. Its function is to lift ulna.
True
False
Skeletal muscle is considered involuntary because it is the only type of muscle usually subject to conscious control.
True
False
When a muscle fiber contracts, the I bands diminish in size, the H zones disappear, and the A bands move closer together but do not diminish in length.
True
False
Plantar flexion at the ankle joint is accomplished by the tibialis anterior muscle.
True
False
Lactic acid results from aerobic respiration.
True
False
The method of attachment of the muscle to the bone is one way of naming the skeletal muscles.
True
False
What's this muscle?
gastrocnemius
soleus
sartorius
achilles
What's this muscle?
sternocleidomastoid
platysma
trapezius
pectoralis major
What's this muscle?
latissimus dorsi
trapezius
external oblique
pectoralis major
What's this muscle?
deltoid
pectoralis major
sternocleidomastoid
platysma
What's this muscle?
vastus lateralis
rectus femoris
vastus medialis
vastus intermedius
Paralysis of which of the following would make an individual unable to flex the knee:
iliopsoas
hamstring group
sartorius
gastrocnemius
The major function of the sarcoplasmic reticulum in skeletal muscle contraction is to:
store ATP
provide a source of myosin for the contraction process
synthesize actin and myosin myofilaments
regulate intracellular calcium concentration
Some muscles are sites for intramuscular injections, they are:
Gluteus maximus, deltoid muscle, vatus medialis
Gluteus medius, deltoid, vastus lateralis
Gluteus medius, biceps brachii, gastrocnemius
Which one of the following is the action of the orbicularis oris:
allows blinking, squinting, and various other protective mechanisms for the eye
closes the jaw
closes, purses, and protrudes the lips
thin filament
actin
myosin
H band
A band
